rule 34 anatomically correct anatomically correct genitalia anatomically correct penis animal genitalia animal penis anthro apartment apple faced arms tied balls bed bedroom big balls big penis black hair bodily fluids bondage bound bridle brown body brown fur building carpet city dripping edging equid equine equine genitalia equine penis erection fur furniture genital fluids genitals hair harness hi res inside kneeling legs tied male male only mammal marvin marvin medial ring mottled mottled genitalia mottled penis muscular muscular anthro muscular male pecs penis precum precum drip sign skyscr solo window 8069670